A more charitable example of a valueless idea would be my idea of a jewelery company that takes you through the process of forging your own engagement or weddin

A more charitable example of a valueless idea would be my idea of a jewelery company that takes you through the process of forging your own engagement or wedding rings. For something that sentimental, I think there's a lot of people who would appreciate being able to say they did more than just drop down a few thousand dollars on a jewelery store counter. But, making goldsmithing accessable to the general public would probably be a very difficult business to start even for someone experienced. How do you cheaply train up random people to get good results? Maybe with the right equipment and expert guidance, people could do it. However, the research and design that would go into putting that workshop and program together would have to be pretty extensive. Hence, as good as an idea as I think it is, it's valueless without a detailed plan and some actual validation.